The health benefits of moderate sun exposure could outweigh any skin cancer risks for people who are deficient in Vitamin D. This is especially true for those who live in colder northern latitudes.
More sun exposure was linked to better survival rates for cancer victims. People in sunnier, southern latitudes were significantly less likely to die from their cancers than those in northern latitudes.
Vitamin D has been called "sunshine vitamin" because it is produced when skin is hit by ultraviolet rays. It has been shown to have a powerful protective effect against cancer.
* Yahoo News January 7, 2008